如何在Django中制作一个不 Select 以前日期的日期 Select 器

我想做一个日期 Select 器，不 Select 以前的日期使用Django.

class DateInput(forms.DateInput):
    input_type = 'date'

class TimeInput(forms.TimeInput):
    input_type = 'time'
"""class used for booking a time slot."""
class BookingForm(forms.ModelForm):
    class Meta:
        model = Booking
        fields = ['check_in_date', 'check_in_time', 'check_out_time',
                    'person', 'no_of_rooms']

        widgets = {
                    'check_in_date': DateInput(),
                    'check_in_time': TimeInput(),
                    'check_out_time': TimeInput(),
                }

    """Function to ensure that booking is done for future and check out is after check in"""
    def clean(self):
        cleaned_data = super().clean()
        normal_book_date = cleaned_data.get("check_in_date")
        normal_check_in = cleaned_data.get("check_in_time")
        normal_check_out_time = cleaned_data.get("check_out_time")
        str_check_in = str(normal_check_in)
        format = '%H:%M:%S'
        try:
            datetime.datetime.strptime(str_check_in, format).time()
        except Exception:
            raise ValidationError(
                _('Wrong time entered.'),
                code='Wrong time entered.',
            )


        # now is the date and time on which the user is booking.
        now = timezone.now()
        if (normal_book_date < now.date() or
            (normal_book_date == now.date() and
            normal_check_in < now.time())):
            raise ValidationError(
                "You can only book for future.", code='only book for future'
            )
        if normal_check_out_time <= normal_check_in:
            raise ValidationError(
                "Check out should be after check in.", code='check out after check in'
            )

上面的代码是在forms.py文件中编写的.如您所见，我制作了一个日期 Select 器，但问题是用户可以 Select 任何日期，但我希望他只 Select 当前或future 的日期.也许，这可以使用JavaScript或Bootstrap来完成，但我想知道我们可以在Django中完成吗？